We bought THESE when we had been feeding "Neighborhood" cats and so they have been pretty useful. I do know They are plastic, but I used to be a great deal more concerned with maintaining the ants out in the food than I was with the material from the bowls. https://fishfood09875.losblogos.com/34573589/how-much-you-need-to-expect-you-ll-pay-for-a-good-pets-plus-dubai